used wave ventures

Hi all, couple random questions on used 96,97 wave ventures,
Couple for sale in my area, '96 and '97 WV 760's and 1100's in the $1000 range. I'm leaning towards 760's for the fuel savings. I've read in these forums about many needing heads after 200 hours. The ones I'm looking at have had carbs rebuilt. Any advice appreciated on reliability. What kind of work might a (not abused) WV need after 200 hrs?

Is a 12v18ah sealed lead acid battery enough juice for compression testing? I normally use it for floundering.